#VU41659 Buffer overflow in Xen - CVE-2014-3715

Vulnerability identifier: #VU41659

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2014-3715

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Xen
Server applications / Virtualization software

Vendor: Xen Project

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

Buffer overflow in Xen 4.4.x allows local users to read system memory or cause a denial of service (crash) via a crafted 32-bit guest kernel, related to searching for an appended DTB.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Xen: 4.4.0

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External links
https://www.openwall.com/lists/oss-security/2014/05/14/4
https://www.openwall.com/lists/oss-security/2014/05/15/6
https://www.openwall.com/lists/oss-security/2014/05/16/1
https://www.securitytracker.com/id/1030252
https://xenbits.xen.org/xsa/advisory-95.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.